baber/WOPTO huggingface dataset:
Patent DE-4003883-A1 (DE)
Title: Arc cutting torch - designed to avoid overheating of and oxygen leakage to electrode wire current contact region
Inventor: LOEFFLER HANS-JOACHIM DIPL ING
IPC: B23K9/00
Filed: 1990-02-09
Abstract: A cutting torch has a nozzle tip into which electrode wire is fed by a coaxial guide, equipped with a current contact nozzle, and into which oxygen is fed by a side feedline. The novelty is that (i) the nozzle tip (1) has a convergent-divergent nozzle channel (7) coaxial to the guide (6); (ii) an aperture (20) is provided coaxial to the guide (6) at the back and of the nozzle tip to delimit the rear end of an oxygen chamber (10), the aperture opening (21) enclosing the  electrode wire with slight play; (iii) the current contact nozzle (2) is spaced from the back end of the nozzle tip; and (iv) a deflector wall (25), with an aperture opening (26) for the electrode wire coaxial to the guide, is located  between and spaced from the current contact nozzle and the nozzle tip. USE/ADVANTAGE - The torch is esp. an under-water manual cutting torch. The design prevents overheating of the current contact region and leakage of oxygen to the current contact region.
Patent DE-4007297-A1 (DE)
Inventor: MAYR MAX DR
IPC: C25D17/00
Filed: 1990-03-08
Abstract: In an electrolytic cell for oxidizing process liquid, flat mutually parallel plane anodes (3) are arranged at a distance from at least one cathode (2). Viewed from the cathode, a plurality of anodes is arranged on one side of the cathode and connected to the positive pole of an electric current supply via ohmic or electronically controlled connecting resistances (4) of various sizes. The connecting resistances decrease with increasing distance between the cathode and the corresponding anode.
Patent DE-4009571-A1 (DE)
Title: Grinding machine for rolling bearing rings - has ring resting on three support rollers and driven by locating rollers at periphery
IPC: B24B19/06
Filed: 1990-03-24
Abstract: The machine is distinguished by the method of clamping the ring for grinding. The ring (1) rests on three support rollers (3) which are mounted on slides (2) spaced 120 deg. apart. One slide is fixed and the other two can be radially adjusted to accept different sizes of ring. The fixed slide has a pair of rollers (4) which bear against the outside surface of the ring and locate it. The adjustable slides have rollers (5) which bear against the outside surface of the ring, one being driven to rotate the ring during grinding. The clamping forces are low, and the location of the ring against the rollers is facilitated by slightly inclining the roller axes. ADVANTAGE - Automatic workpiece loading is simplified. Quickly and easily adjustable for different sizes of work. Effect of clamping forces on accuracy is reduced.
Patent DE-4014003-A1 (DE)
Title: Industrial robot with counterbalance weight - is attached by parallelogram linkage so that robot arm is always balanced
Inventor: WEIS OTTO
IPC: B25J3/00
Filed: 1990-04-27
Abstract: An industrial robot has an upper arm (3) which is attached to the body (17) and pivoted to the lower arm (18) by the bolt (1). As the lower arm (18) is swung away from the upper arm (3) the increased turning moment imposed on the body (17) is counterbalanced by a weight (9). The lower arm (18) is connected to links (23) and (24) which together form a parallelogram linkage. The link (24) extends beyond the pivot point (25) to form part of a second parallelogram linkage consisting of links (13) and (30). The link (13) is extended beyond the pivot point (8) and is attached to a link (12) which carries a counterbalance weight (9) at its outer end. The double parallelogram linkage causes the weight (9) to move so that it balances the weight of the lower arm (18) in any position of that arm (18). USE - Industrial robots.
Patent DE-4016217-A1 (DE)
Title: Moccasin shoe with variable design - incorporates asymmetrical lines formed on front upper
Inventor: SCHILLING THEO
IPC: A43B3/14
Filed: 1990-05-19
Abstract: The moccasin shoe has an upper completely enclosing the front foot area of the wearer. This upper (16) is made from a blank with the lines of the outer blank edges (17) guided asymmetrical in the front foot area. The blank edges each run up to the upper closure on the inside or outside of the shoe from a point (19) which lies at least near the edge of the lower upper (15) which forms a tread surface. The blank has on one side of the lower upper a protruding instep part (22) which is stitched along its outer edge with the corresponding blank edge of the upper on the other side of the lower upper by means of a seam (25) which runs at a distance from the sole part (12) and is gathered along to form folds (26). USE/ADVANTAGE - Versatile designs can be produced whilst still retaining the comfort and basic principles of a moccasin shoe.
Patent DE-4020119-A1 (DE)
Title: Generating accident prevention signal for thermal turbo machine - evaluating detected rotor bearing and shaft vibration to initiate warning signal
Inventor: SCHNEIDER WOLFRAM DIPL ING
IPC: F01D21/00
Filed: 1990-06-25
Abstract: The accident prevention procedure uses cyclic evaluation of measuring signals obtained from vibration sensors associated with the bearings for the successive rotor sections (1, 2, 3) and with the rotor shaft. The measuring signals are divided into groups corresp. to the different rotor sections (1, 2, 3), each group containing at least two bearing vibration sensor signals and at least one shaft vibration sensor signal, the bearing vibration signals provided by the sensors for the outer bearings fed to two successive groups. Within each group the bearing vibration signals are summated and evaluated with a given harmonic component of the shaft vibration signal which is used to obtain a transient signal to provide a warning signal.
Patent DE-4022962-A1 (DE)
Title: Roof truss constructed from hollow steel sections - which are connected by joints which permit relative rotation
Inventor: HOERNSCHEMEYER ALWIN
IPC: E04C3/04
Filed: 1990-07-19
Abstract: The roof truss is constructed with load bearing members formed from hollow rectangular or U-shaped steel sections which fit one inside another. The rafters (2) which support the opposite sides of the roof are connected to each other at the roof ridge by a joint element (10) which permits relative rotation about the horizontal axis. The joint element is connected to each rafter (2) by a joint which permits rotation about an axis (21) which is at right angles to the horizontal axis (11) of rotation of the roof ridge joint (10). USE - Roof trusses.
Patent DE-4025252-A1 (DE)
Title: Incinerator waste-heat boiler - has contact-heating surfaces in horizontal portion level with gas-radiation chamber
Inventor: GOEBEL MICHAEL
IPC: F22B21/34
Filed: 1990-08-09
Abstract: The steam- or hot-water-boiler utilises waste heat from a refuse incinerator. The contact-heating surfaces (3) are situated in the horizontal portion at the same level as the gas-radiation chamber (2), to the left and right of the centre line. The contact heating surfaces are equidistant from the centre line and alongside the chamber and downstream of it in the exhaust gas flow direction. USE/ADVANTAGE - Keeps overall length to min.
Patent DE-4027114-A1 (DE)
Title: EPDM vulcanisation system without toxic nitrosamine(s) - contg. 2-mercapto-benzothiazole etc. and special mixt. of thiuram- and-or di:thiocarbamate and bis-amido-polysulphide-type accelerators
Inventor: GRAEBNER FRIEDRICH-WILHELM DIP
IPC: C08K5/5398
Filed: 1990-08-28
Abstract: EDPM-Vulcanisation system which does not produce toxic nitrosamines comprises 100 pts. EPDM rubber, 40-150 pts. C black (N 550), 0-150 pts. chalk, 0-5 pts. stearic acid, 50-150 pts. mineral oil plasticiser (including extender), 0-10 pts. CaO, 0-20 pts. ZnO, 0-5-4 pts. Zn di-n-butyl phoshorodithionate and/or other salts of esterified and/or non-esterified dithiophosphoric acid, 0.7-5 pts. vulcanising agent (I) and/or (II), 2-4 pts. 2-mercaptobenzthiazole (MBT) and/or 2-mercaptobenzthiazole disulphide and/or salts of MBT, 0.5-4 pts. vulcanising agent (III), 0.2-8 pts. S, and other additives up to 100 pts.; the vulcanising agents have the formulae (I)-(III), total R1, R2, R3, R4 = at least 16C atoms; n = 1 or above; total R5, R6 = at least 8C atoms; m -= 1 or above, esp. 2 or above; M = metal atom; total R7, R8, R9, R10 - at least 4C atoms; p = 1 or above. Pref. R1-R10 are the same or different, pref. aliphatic, aromatic or mixed aliphatic/aromatic hydrocarbyl; R1 = R2 = R3 = R4 = benzyl and n = 2 (i.e. (I) = tetrabenzylthiuram disulphide), and R5 = R6 = benzyl, m = 2 and M = Zn (i.e. (II) = Zn, N,N-dibenzyldithiocarbamate (IIA)); the substits. contain hetero and/or halogen atoms, or the pairs of substits. R1/R2, R3/R4, R5/R6, R7/R8, R9/R10 are bonded to one another in rings, pref. with R7/R8 = R9/R10 = (CH2)5 and n = 2 (i.e. (III) = N,N'-bis-(caprolactam)-disulphide (IIIA)). USE/ADVANTAGE - The above synergistic vulcanisation system is at least effective as prior art systems (w.r.t. rate of vulcanisation, physical/mechanical properties of vulcanised rubber), and does not produce potentially carcinogenic nitrosamines.
Patent DE-4030413-A1 (DE)
Title: Short-circuit current limiter - with capacitor parallel to superconductor and rapid switch in tandem
Inventor: KRIECHBAUM KARL DR ING
IPC: H02H3/02
Filed: 1990-09-26
Abstract: Short-circuit current limiter for a load circuit having superconductor has parallel to the latter a capacitor and in series with them a switch which interrupts the current when the superconductor passes from the superconducting to the normally conducting state.  Pref. an a.c. generator (1) supplies current to a consumer (4).  The reactance (2) determines the size of current which can flow when a short-circuit occurs at the point.  The limiter (3) comprises superconductor and parallel to it a capacitor.  The switch interrupts the circuit in case of a short-circuit when the superconductor passes from the superconducting to the normally conducting state. ADVANTAGE - Limiter can be used for high temp. superconductors.  The switch interrupts any short-circuit current before the superconductor is destroyed.
Patent DE-4038458-A1 (DE)
Inventor: HANSEN NILS
IPC: C07C15/00
Filed: 1990-12-03
Abstract: The invention relates to predominantly naphthenic-aromatic hydrocarbon mixtures which are characterised by a high content of essentially mono- and di-nuclear aromatics and a PAH content of less than 0.03%, and to processes for the production thereof by means of separation using supercritical gases.
Patent DE-4102553-A1 (DE)
Title: String musical instrument with keyboard - has tongue stops on spring-loaded weights hinging on strikers
Inventor: KAMMERER SIGFRID
IPC: G10C1/06
Filed: 1991-01-29
Abstract: The stringed musical instrument has a keyboard, the strings being played by key-operated strikers, each with a tongue spring-loaded against a stop and a quill. The stop is on a weight (19) hinging on the striker (11) and spring-loaded (20) against a stop (21). On movement of the striker by the key, this hinges under inertia in opposition to the spring, so adjusting the tongue stop. ADVANTAGE - The volume of each note played is adjusted dependent the speed at which the key is depressed.
Patent DE-4105970-A1 (DE)
Title: Electrical plug-type connector with housing open to pin side of insulated material - has housing in form of block with inner and outer wall sections limiting rectangular pin accommodation space and positioning or coding cam
Inventor: WILMSMANN GEB SUDMOELLER
IPC: H01R13/64
Filed: 1991-02-26
Abstract: The inner wall sections of the hollow block formation (11) are formed ribs (25, 26) formed between cross webs with separable material bridges (27, 29). the connector has at least one engagment opening and a wall section for the engagement on a bolt hool fitted to the connector. This wall section is formed from one of the inner wall sections (29), beneath which an engagement hole (z) is provided. The separable material bridges (27, 28) are located in the plane of the outer wall sections of the block (11) or actually form them, and in their connecting area to the ribs (25, 26) are provided with material weak zones. They take the form of thin rectangular plates.
Patent DE-4106278-A1 (DE)
Inventor: LETZEL HELMUT DIPL ING
IPC: F16K11/04
Filed: 1991-02-28
Abstract: A radiator valve comprises a housing (1) on which are arranged a pipe union (11) for connection to the radiator and a screw socket (13) for receiving the first closure piece (4), which is arranged on a hollow valve spindle (3). The first closure piece (4), together with a valve seat (33) in the housing (1), forms a choke-like preset device for the throughflow. To allow the line or radiator to be emptied through the hollow valve spindle (3), the hollow valve spindle (3) contains a second valve closure piece (5), which can be actuated from the outside against the force of a spring and moved forward from the outside with regard to a corresponding valve seat in the valve spindle (3). The second hollow valve closure piece (5) is double acting and can be moved, with its end (52) opposite the discharge valve seat (33), through the first valve closure piece (4) toward the housing valve seat (14). A controller (9) which acts on the second valve closure piece (4) can be placed on the valve.
Patent DE-4112186-A1 (DE)
Title: Roll=over bar for open vehicle - incorporates flexible section acting as head restraint
Inventor: WUENSCHE MARTIN DIPL ING
IPC: B60R21/13
Filed: 1991-04-13
Abstract: The roll-over bar is for an open motor vehicle. It can be moved by a drive from a horizontal position to a vertical position about an axis (D). The drive is brought into action when the acceleration or retardation of the vehicle exceeds a given value, and the middle part (5) of the bar is formed as a flexible support surface which the head (K) of an occupant strikes in the vent of an accident. USE/ADVANTAGE - Roll-over bar for an open vehicle or cabriolet which also acts as a head restraint.
Patent DE-4113668-A1 (DE)
Title: Flat device to protect against laser - resembles curtain and comprises layers of nonwoven carbon@ fibres, aluminium@ foil and non-combustible fabric
Inventor: EICHINGER STEPHAN
IPC: A61B90/00
Filed: 1991-04-26
Abstract: A flat device for protection against laser beams resembles a curtain and comprises at least one layer each of the following: carbon fibre nonwoven, aluminium foil and noncombustible fabric. The layers are joined to each other along the outer edges. A fabric layer is positioned on the outside on both sides and at least one of these layers consists of a meta-aramid fibre. ADVANTAGE - The device is flexible and foldable and can be adjusted into a variety of positions. At the same time, it offers reliable protection in the room section cut off from the laser.
Patent DE-4116473-A1 (DE)
Title: Sealing riser in casing of burning oil or gas prodn. well - by driving access tunnel, boring transverse hole through riser, sealing riser, and fitting stop valve to control resumed flow
IPC: E21B29/08
Filed: 1991-05-21
Abstract: Below the ground, a working tunnel is driven that leads to the riser (3) so that a length of it is exposed and made accessible from outside. Work can then be done to seal off the riser. Two flanged half-shells (9, 10) together form a cylinder having extensions (14, 15) around the riser (3). These extensions are closed by the pressure-tight flanges (16, 17). The flange (17) has a pressure-tight bearing for the shaft (18), which has an external drive. The leading end of the shaft (18) has tools that include an auger bit (22) and cutter (21), and the arrangement is used to bore through the riser pipe (3) a transverse hole with the same dia. as that of the internal thread (30). USE/ADVANTAGE - Other methods of extinguishing such fires, by explosive or other means, are expensive, can be dangerous and may be unsuccessful. This method overcomes these drawbacks and provides for the resumption of controlled further flow from the riser.
Patent DE-4118381-A1 (DE)
Title: Seal for shaft passing through housing wall - has centring seat for easy fixing in inaccessible areas of housing
Inventor: BUERKER RAINER
IPC: F16J15/3224
Filed: 1991-06-05
Abstract: The seal includes a rotationally rigid bellows (6) whose inner edge (4) is axially fixed on the shaft and whose outer edge (8) is fixedly and sealingly connected to the housing (3). The shaft (1) has a centring seat (9) for the outer edge (8) of the bellows and thus forms a tool with which the outer edge (8) can be fixed on the housing (3) when the shaft (1) is installed in the housing. The centring seat can be formed by a ring (10) fixed on the shaft wherein the free edge (11) of the ring has at least one axial incision (12) and forms a blade (13) which engages in an annular space (14) outside of the housing on the air side of the bellows (5). USE - For a driven steering axle on a vehicle. The shaft need only be moved back an additional amount to bring the edge of the bellows into its installation position.
Patent DE-4119657-A1 (DE)
Title: Electromagnetically adjustable radial compressor for exhaust turbo-supercharger - has blades fitted to spring-biased inner coaxial shaft subject to progressive attraction by external electromagnet
Inventor: INGELHEIM PETER
IPC: F04D29/36
Filed: 1991-06-14
Abstract: Turbine blades (61) are fixed to an inner shaft (60) around which an outer shaft (63) carries the broadened surfaces (64) of a supercharger rotor and the turbine wheel (62). The inner shaft (60) is urged by a spring (70) towards one axial end position. The blades (61) are moved by an electromagnet (72,73) whose north-seeking pole opposes that of a permanently magnetised ring (71) fixed to the outer shaft (63). The spring (70) is compressed progressively as the energisation of the electromagnet (72,73) increases. ADVANTAGE - Supercharging pressure is continuously adjustable at any given rotational speed by contactless setting of compressor blade dia.
Patent DE-4121078-A1 (DE)
Inventor: FRICK GUENTER
IPC: F16B37/00
Filed: 1991-06-26
Abstract: There is a method of screw-fastening of a drilled-through flat part (7) to a profile carrier 1, in which the profile carrier 1 is provided with a grooved channel 2 which is bounded by two channel walls 4, and in which an attachment screw 9 projects into the grooved channel 2, the shank 11 being screwed into the grooved channel 2 by means of the thread 12, and held. In this case, it is desired for the device to be less costly and to be assembled in a simplified manner. This is achieved in that the channel walls 4 pass through free from any projection as far as the outside 3 of the profile carrier 1, in that their distance from one another is matched to the thickness of the shank 11, and in that the attachment screw is constructed as a sheet-metal self-tapping screw 9 whose thread 12 engages in the channel walls 4. The channel walls take over the function of a mating piece for the sheet-metal self-tapping screw. <IMAGE>
Patent DE-4124573-A1 (DE)
Title: Magnetic disc recording system - has head elements set into sliding carrier of sintered material
Inventor: HIGUCHI SHINSUKE
IPC: G11B5/82
Filed: 1991-07-24
Abstract: A magnetic disc recording system has discs (1) that have a carbon containing protective layer on the surface. The heads (13) are embedded within a sliding element (12) that is produced of a material that forms an oxide for the oxidation of the carbon material. The sliding element material is produced in powder form that is suitable for use in a sintering process. Typically this can be an aluminium oxide as main component, with additional elements from the group of Niobiumoxide, Tantalumoxide, titanium oxide, magnesium oxide or silicon oxide. ADVANTAGE - The system improves interaction between head and disc.
Patent DE-4125419-A1 (DE)
Title: Rain overflow and associated basin - is for rainwater treatment and discharge plant and incorporates sieve devices and has input from canalisation
Inventor: WILLEMS GILBERT
IPC: B01D21/00
Filed: 1991-07-29
Abstract: The round structure (2) has a catchment chamber (8) connecting to the input (3). It has a threshold (9) with a drain (4) leading to the clarification plant (5), and a discharge threshold (10) higher than the first and acting as an overflow. The catchment chamber has a first circular segment-shaped sieve covering (11) corresp. to the extent of the discharge threshold (10) in the plane of the top of which it is located. A rain overflow basin is provided which is round with a tangential inflow, and formed as a catchment basin. It is formed as a throughflow basin with a clarifying overflow open to the flow device, whereby the top of the clarifying overflow is located lower than that of the discharge threshold (10) of the rain overflow. The clarifying overflow has a second sieve covering. USE/ADVANTAGE - A rain discharge unit with improved efficiency as regards sediment retention.
Patent DE-4129415-A1 (DE)
Title: Treating contaminated soils and waters -  by forming floating contaminant-contg. foam layers
Inventor: FECHNER KARL-HEINZ
IPC: B09C1/00
Filed: 1991-09-04
Abstract: Contaminated soil treatment involves; a) mixing the soil with water; 2) removing the resulting floating contaminant-contg. foam layer from the mixt.; 3) sepg. the treated soil from the water; 4) circulating the water with the dissolved and/or suspended matter of the soil/water mixt. under turbulent conditions so that a soil-free interlayer is formed between the soil/water mixt. and the floating contaminant-contg. foam layer; and 5) removing the foam layers at set time intervals until the interlayer exhibits a constant absorption value for light of predetermined wavelength. Also claimed are similar methods for treating contaminated still or flowing waters and appts. for carrying out the process. ADVANTAGE - Contaminants are removed by a floatation effect and time-consuming, expensive pre-analysis of the entire contamination is not required, analysis of only the residual contamination (e.g. in the interlayer) being carried out.
Patent DE-4129654-A1 (DE)
Title: Metallising process for semiconductor - by applying first metal, barrier of titanium-tungsten nitride, then second metal
Inventor: NIRSCHL ERNST DR
IPC: H01L23/532
Filed: 1991-09-06
Abstract: A metallising process, esp. alloying, for a semiconductor (1) comprises applying a first metal (2), a barrier (5) and a second metal (4), the barrier comprising TiWN. The second metal is a eutecticum, e.g. Au-Ge. Application of the barrier and of the second metal occurs in one-step, pref. application of first and second metals and barrier occurs in one step. An adhesive agent (6), e.g. Ti, can be applied between the barrier and the second metal. USE/ADVANTAGE - For semiconductor chips, esp. III-V semiconductors and those used in optoelectronics, e.g. IRED's. The process is simple and economical.
Patent DE-4138608-A1 (DE)
Title: Plastics tube and component welding - involves using heated bush round tube at component joint with inner tube support
Inventor: LEHMANN KLAUS
IPC: B29C65/20
Filed: 1991-11-25
Abstract: To bond a plastic tube in a hole in a plastic component involves using a heated welding process. The plastics tube is inserted into the hole in the component at the joint before heating. A heating tool, with a conical outer surface, is inserted between the tube and the component by displacement of heated component material. The tube wall is pressed against the softened component by a further tool inserted into the tube. The tube wall is pref. supported at least at the joint zone, during heating, at its inner side. The joint zone is three to four times the wall thickness of the tube. The heating bush pref. has a conical outer side and a cylindrical inner side matching the dia. of the tube. A further tool, with a conical outer side, is used to apply pressure. A mandrel is centrally placed within the heating bush, so that the mandrel and heating bush define a ring gap to hold the tube. The mandrel is then heated. ADVANTAGE - The method is simple and cost-effective to hot weld a tube to a component without multiple positioning of the joined parts.